not washington but on this end. there's recap for a second, if you will. the laffer curve that you game famous for. that's your theory on tax rates and revenue and it shows, the laffer curve, if you have a tax rate of zero obviously you correct zero revenue to run the government. if you have a tax rate, your theory holds of 100%, you also probably collect zero in revenue because you've disincentivized people to get to work. somewhere in your curve is the sweet spot of the tax rate that would allow for the most revenue. what is that sweet spot? >> i don't know where it is exactly, obviously. but i know the laffer curve, the operation in the upper income groups is much more sensitive to tax rate hikes that the lower ranges. rich people have all sorts of options available to cut back on taxes. hire lawyers, accountants, deferred income specialists, congressmen, senators. so when you raise tax rates on the rich you almost always get less revenue and cause the economy to collapse. it makes no sense raising tax rates on the highest income offers. >> what will ha